Barrel-lock for breakdown guns



N. R. DAVIS.

RRRRRRRRRRRRRRRRRRRRRRRRR s. I No. 294,772. Patented Mar. 11, 1884.

" UNITED STATES PATENT OFFIcE,

NATHAN RUSSELL DAVIS, OF FREETOVVN, MASSACHUSETTS.

BARREL-LOCK FORBREAKDOWN GUNS.

SPECIFICATION forming part of Letters Patent No. 294,772, dated March 11., 18 84.

Application filed December 11, 1883.

ToaZZ whom it'TlZCbZ/ concern.-

Be it know n that I, NATHAN RUssELL DAVIS, of Freetown, in the county of Bristol, of the Commonwealth of Massachusetts, have invented a new and useful Improvement in Breech- Loading Fire-Arms; and I do hereby declare the same to be describedin the following specification and represented in the accompanying drawing, which is a longitudinal section of parts ofa breecl1-loading fire-arm provided with my invention, such invention being not only to hold retracted the locking-bolt of the barrel or barrels while such barrel or barrels may be raised above the breech for being charged, but to automatically set such bolt free for it to be thrown forward to lock the barrel or barrels down in position for discharge of the charge or charges thereof.

In the drawing, A denotes the stationary breech, and B one of the barrels, of a double barreled breech-loading gun, such barrels be ing connected.together and pivoted to a projection, G, extending from the breech. The usual pivotal and locking projection of the barrels is shown at l) as provided with a recess or notch, a, adapted toreceive and co-operate with the slide'bolt E, whose retraction lever is represented at I". This lever and bolt are to be supposed to be adapted and arranged in the usual manner, and to be provided with a spring for advancing the bolt, the lever being for retracting the bolt or drawing it out of the notch a, in order to allow of the barrels being turned above the breech forbeing charged. The bolt is recessed lengthwise to receive a latch, G, and its operative spring I). This latch is notched, as shown at c, and the spring is applied so as, when the bolt is drawn back, the latch will be forced upward by the spring to engage the latch with a catch or projection, cl, extending down from the breech in manner as shown, such catch being received within the notch c of the latch. On depressing the barrels to close them by the breech, they at their junction or their cartridge-retractorf will be borne down upon the latch and will depress it (No model.)

out of engagement with the catch d, in which case the spring for advancing the bolt will be free to throw it forward into the notch c. The said spring for advancing the bolt may be applied either to the said bolt or to its operative lever.

From the above it will be seen that without the latch the bolt would be advanced so as to prevent a full depression of the barrels relatively to the breech, and that such full depression could not be effected without first retractingthe bolt by manual power applied to its lever, such back movement of the bolt being to allow theloeking projection D to pass down clear of the bolt. I

I do not claim in a breech-loading fire-arm a catch-bolt and its operative spring arranged below the locking-bolt, such bolt having astud for the notched locking projection of the barrels to not upon to depress the catch-bolt, all being as shown in the United States Patent N 0. 213,760. In my improvement the latch G and its actuator-spring are carried by and movable with the lockingbolt, and there is to the breech a catch, (Z, extending down therefrom to the latch. \Vith my improvement the barrels, when down, are held by both latch and bolt entering the notch a, such latch and bolt constituting a compound bolt.

I claim I11 a breech-loading fire-arm having a stationary breech and a barrel or barrels pivoted or hinged, so as to be movable relatively to such breech, in manner as set forth, the combination of the notched latch G and its actuating-spring b, secured or attached to the bolt E, so as to be movable lengthwise thereby,with the breech A, the barrel or barrels B, the notched locking projection D, and the stationary latching-catch d, such catch being extend ed from the breech, and all being arrangedin manner to operate substantially as set forth.

NATHAN RUSSELL DAVIS. lVitn esses:

R. H. EDDY, S. N. PIPER. 

